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linux-stable/arch/parisc/kernel
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Helge Deller 61e150fb31 parisc: Fix flush_dcache_page() for usage from irq context 
Since at least kernel 6.1, flush_dcache_page() is called with IRQs
disabled, e.g. from aio_complete().

But the current implementation for flush_dcache_page() on parisc
unintentionally re-enables IRQs, which may lead to deadlocks.

Fix it by using xa_lock_irqsave() and xa_unlock_irqrestore()
for the flush_dcache_mmap_*lock() macros instead.

Cc: linux-parisc@vger.kernel.org
Cc: stable@kernel.org # 5.18+
Signed-off-by: Helge Deller <deller@gmx.de>
 		2023-05-24 19:03:49 +02:00
..
syscalls parisc: Align parisc MADV_XXX constants with all other architectures 2022-12-17 23:19:39 +01:00
vdso32 parisc: Add missing FORCE prerequisites in Makefile 2022-12-18 22:18:49 +01:00
vdso64 parisc: Add missing FORCE prerequisites in Makefile 2022-12-18 22:18:49 +01:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
Makefile kbuild: use obj-y instead extra-y for objects placed at the head 2022-10-02 18:04:05 +09:00
alternative.c parisc: Use num_present_cpus() in alternative patching code 2023-05-23 18:17:32 +02:00
asm-offsets.c parisc: Fix vDSO signal breakage on 32-bit kernel 2022-07-02 18:36:58 +02:00
audit.c audit: add support for the openat2 syscall 2021-10-01 16:52:48 -04:00
cache.c parisc: Fix flush_dcache_page() for usage from irq context 2023-05-24 19:03:49 +02:00
compat_audit.c audit: add support for the openat2 syscall 2021-10-01 16:52:48 -04:00
drivers.c driver core: make struct bus_type.uevent() take a const * 2023-01-27 13:45:52 +01:00
entry.S parisc: Fix userspace graphics card breakage due to pgtable special bit 2022-10-14 10:45:12 +02:00
firmware.c parisc: Replace regular spinlock with spin_trylock on panic path 2023-05-03 17:43:26 +02:00
ftrace.c Tracing updates for 5.16: 2021-11-01 20:05:19 -07:00
hardware.c parisc: Clean up names in hardware database 2022-08-01 18:43:23 +02:00
head.S parisc: Add runtime check to prevent PA2.0 kernels on PA1.x machines 2022-08-22 11:09:17 +02:00
hpmc.S parisc: Re-use toc_stack as hpmc_stack 2022-01-11 11:57:37 +01:00
inventory.c parisc: Add qemu fw_cfg interface 2020-10-15 08:10:37 +02:00
irq.c asm-generic: Conditionally enable do_softirq_own_stack() via Kconfig. 2022-09-05 17:20:55 +02:00
jump_label.c jump_label: make initial NOP patching the special case 2022-06-24 09:48:55 +02:00
kexec.c parisc: kexec: include reboot.h 2023-05-09 14:04:56 +02:00
kexec_file.c parisc: add support for kexec_file_load() syscall 2019-09-08 15:41:46 +02:00
kgdb.c parisc: Drop duplicate kgdb_pdc console 2022-12-18 22:18:49 +01:00
kprobes.c parisc: Fix typos in comments 2022-05-08 20:01:12 +02:00
module.c module: replace module_layout with module_memory 2023-03-09 12:55:15 -08:00
pa7300lc.c
…
pacache.S parisc: Ensure page alignment in flush functions 2023-05-03 17:43:26 +02:00
parisc_ksyms.c parisc: Drop strnlen_user() in favour of generic version 2021-09-09 12:44:30 +02:00
patch.c parisc: Fix patch code locking and flushing 2022-05-17 21:52:59 +02:00
pci-dma.c parisc: Improve cache flushing for PCXL in arch_sync_dma_for_cpu() 2023-05-22 18:30:52 +02:00
pci.c parisc: Drop comments which are already in pci.h 2019-09-05 16:41:11 +02:00
pdc_chassis.c kernel.h: split out panic and oops helpers 2021-07-01 11:06:04 -07:00
pdc_cons.c parisc: Drop locking in pdc console code 2022-12-18 22:18:49 +01:00
pdt.c mm/hwpoison: pass pfn to num_poisoned_pages_*() 2022-11-08 17:37:22 -08:00
perf.c parisc/perf: open access for CAP_PERFMON privileged process 2020-04-16 12:19:08 -03:00
perf_asm.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
perf_images.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
process.c parisc: Allow to reboot machine after system halt 2023-05-24 15:46:12 +02:00
processor.c parisc: Show MPE/iX model string at bootup 2022-12-19 16:08:52 +01:00
ptrace.c parisc: Wire up PTRACE_GETREGS/PTRACE_SETREGS for compat case 2023-02-01 21:42:37 +01:00
real2.S parisc: Fix argument pointer in real64_call_asm() 2023-05-03 17:43:26 +02:00
relocate_kernel.S parisc: add kexec syscall support 2019-09-08 15:37:04 +02:00
setup.c parisc: Fix inconsistent indenting in setup_cmdline() 2022-12-17 13:25:34 +01:00
signal.c ptrace: Cleanups for v5.18 2022-03-28 17:29:53 -07:00
signal32.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
signal32.h parisc: Add vDSO support 2022-03-11 19:49:30 +01:00
smp.c treewide: Trace IPIs sent via smp_send_reschedule() 2023-03-24 11:01:28 +01:00
stacktrace.c parisc: Fix implicit declaration of function '__kernel_text_address' 2021-11-13 22:10:56 +01:00
sys_parisc.c parisc: Cleanup mmap implementation regarding color alignment 2023-05-03 17:43:26 +02:00
sys_parisc32.c
…
syscall.S parisc: Add lws_atomic_xchg and lws_atomic_store syscalls 2022-01-07 01:29:21 +01:00
time.c parisc: Mark cr16 clock unstable on all SMP machines 2022-05-08 20:01:12 +02:00
toc.c parisc: Fix missing prototype for 'toc_intr' warning in toc.c 2022-01-20 20:39:19 +01:00
toc_asm.S parisc: Enable TOC (transfer of contents) feature unconditionally 2022-01-11 11:57:37 +01:00
topology.c parisc: fix a crash with multicore scheduler 2022-06-03 09:54:01 +02:00
traps.c parisc: Handle kgdb breakpoints only in kernel context 2023-05-24 15:46:12 +02:00
unaligned.c parisc: Fix exception handler for fldw and fstw instructions 2022-08-21 08:43:09 +02:00
unwind.c parisc: Move thread_info into task struct 2021-11-01 07:35:59 +01:00
vdso.c treewide: use get_random_u32_below() instead of deprecated function 2022-11-18 02:15:15 +01:00
vmlinux.lds.S objtool/idle: Validate __cpuidle code as noinstr 2023-01-13 11:48:15 +01:00